Load Balancing

Load balancing refers to efficiently distributing incoming network traffic across a group of backend servers, also known as a server farm or server pool.

• NGINX

Example configuration:

services:
  myLoadBalancer:
    host: lb.example.com
      persistent: true
      strategy: random
      serviceNames: ["server1", "server2"]
  server1:
    redirect: "http://172.30.0.4:3000"
  server2:
    redirect: "http://172.24.0.2:8080"

Properties:

• persistent enables session persistence (Default: false).

  When a client connects to lb.example.com, voltproxy sets an HTTP cookie that stores the index of the server to which they connected. The next time the client connects to lb.example.com, they will be directed to the same service.

• strategy defines the service selection strategy (Default: roundRobin).

• serviceNames indicates the servers in the server pool (Default: []).

Selection Strategies

All strategies respect health checks.

• roundRobin: selects healthy services in a cyclic manner.
• failover: selects the first service in the pool that is healthy.
• random: selects a random healthy server from the pool.